Struct UndoRedo

#[repr(C)]
pub struct UndoRedo { /* private fields */ }

Godot class UndoRedo.

Inherits Object.

Related symbols:

• undo_redo: sidecar module with related enum/flag types
• IUndoRedo: virtual methods

See also Godot docs for UndoRedo.

Construction

This class is manually managed. You can create a new instance using UndoRedo::new_alloc().

Do not forget to call free() or hand over ownership to Godot.

Implementations

impl UndoRedo

pub fn create_action(&mut self, name: impl AsArg<GString>)

To set the default parameters, use Self::create_action_ex and its builder methods. See the book for detailed usage instructions.

pub fn create_action_ex<'a>( &'a mut self, name: impl AsArg<GString> + 'a, ) -> ExCreateAction<'a>

pub fn commit_action(&mut self)

To set the default parameters, use Self::commit_action_ex and its builder methods. See the book for detailed usage instructions.

pub fn commit_action_ex<'a>(&'a mut self) -> ExCommitAction<'a>

pub fn is_committing_action(&self) -> bool

pub fn add_do_method(&mut self, callable: &Callable)

pub fn add_undo_method(&mut self, callable: &Callable)

pub fn add_do_property( &mut self, object: impl AsObjectArg<Object>, property: impl AsArg<StringName>, value: &Variant, )

pub fn add_undo_property( &mut self, object: impl AsObjectArg<Object>, property: impl AsArg<StringName>, value: &Variant, )

pub fn add_do_reference(&mut self, object: impl AsObjectArg<Object>)

pub fn add_undo_reference(&mut self, object: impl AsObjectArg<Object>)

pub fn start_force_keep_in_merge_ends(&mut self)

pub fn end_force_keep_in_merge_ends(&mut self)

pub fn get_history_count(&mut self) -> i32

pub fn get_current_action(&mut self) -> i32

pub fn get_action_name(&mut self, id: i32) -> GString

pub fn clear_history(&mut self)

To set the default parameters, use Self::clear_history_ex and its builder methods. See the book for detailed usage instructions.

pub fn clear_history_ex<'a>(&'a mut self) -> ExClearHistory<'a>

pub fn get_current_action_name(&self) -> GString

pub fn has_undo(&self) -> bool

pub fn has_redo(&self) -> bool

pub fn get_version(&self) -> u64

pub fn set_max_steps(&mut self, max_steps: i32)

pub fn get_max_steps(&self) -> i32

pub fn redo(&mut self) -> bool

pub fn undo(&mut self) -> bool

Methods from Deref<Target = Object>

pub fn get_class(&self) -> GString

pub fn is_class(&self, class: impl AsArg<GString>) -> bool

pub fn set(&mut self, property: impl AsArg<StringName>, value: &Variant)

pub fn get(&self, property: impl AsArg<StringName>) -> Variant

pub fn set_indexed( &mut self, property_path: impl AsArg<NodePath>, value: &Variant, )

pub fn get_indexed(&self, property_path: impl AsArg<NodePath>) -> Variant

pub fn get_property_list(&self) -> Array<Dictionary>

pub fn get_method_list(&self) -> Array<Dictionary>

pub fn property_can_revert(&self, property: impl AsArg<StringName>) -> bool

pub fn property_get_revert(&self, property: impl AsArg<StringName>) -> Variant

pub fn set_script(&mut self, script: &Variant)

pub fn get_script(&self) -> Variant

pub fn set_meta(&mut self, name: impl AsArg<StringName>, value: &Variant)

pub fn remove_meta(&mut self, name: impl AsArg<StringName>)

pub fn get_meta(&self, name: impl AsArg<StringName>) -> Variant

To set the default parameters, use Self::get_meta_ex and its builder methods. See the book for detailed usage instructions.

pub fn get_meta_ex<'a>( &'a self, name: impl AsArg<StringName> + 'a, ) -> ExGetMeta<'a>

pub fn has_meta(&self, name: impl AsArg<StringName>) -> bool

pub fn get_meta_list(&self) -> Array<StringName>

pub fn add_user_signal(&mut self, signal: impl AsArg<GString>)

To set the default parameters, use Self::add_user_signal_ex and its builder methods. See the book for detailed usage instructions.

pub fn add_user_signal_ex<'a>( &'a mut self, signal: impl AsArg<GString> + 'a, ) -> ExAddUserSignal<'a>

pub fn has_user_signal(&self, signal: impl AsArg<StringName>) -> bool

pub fn remove_user_signal(&mut self, signal: impl AsArg<StringName>)

pub fn emit_signal( &mut self, signal: impl AsArg<StringName>, varargs: &[Variant], ) -> Error

Panics

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will panic in such a case.

pub fn try_emit_signal( &mut self, signal: impl AsArg<StringName>, varargs: &[Variant], ) -> Result<Error, CallError>

Return type

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will return Err in such a case.

pub fn call( &mut self, method: impl AsArg<StringName>, varargs: &[Variant], ) -> Variant

Panics

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will panic in such a case.

pub fn try_call( &mut self, method: impl AsArg<StringName>, varargs: &[Variant], ) -> Result<Variant, CallError>

Return type

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will return Err in such a case.

pub fn call_deferred( &mut self, method: impl AsArg<StringName>, varargs: &[Variant], ) -> Variant

Panics

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will panic in such a case.

pub fn try_call_deferred( &mut self, method: impl AsArg<StringName>, varargs: &[Variant], ) -> Result<Variant, CallError>

Return type

This is a varcall method, meaning parameters and return values are passed as Variant. It can detect call failures and will return Err in such a case.

pub fn set_deferred( &mut self, property: impl AsArg<StringName>, value: &Variant, )

pub fn callv( &mut self, method: impl AsArg<StringName>, arg_array: &Array<Variant>, ) -> Variant

pub fn has_method(&self, method: impl AsArg<StringName>) -> bool

pub fn get_method_argument_count(&self, method: impl AsArg<StringName>) -> i32

pub fn has_signal(&self, signal: impl AsArg<StringName>) -> bool

pub fn get_signal_list(&self) -> Array<Dictionary>

pub fn get_signal_connection_list( &self, signal: impl AsArg<StringName>, ) -> Array<Dictionary>

pub fn get_incoming_connections(&self) -> Array<Dictionary>

pub fn connect( &mut self, signal: impl AsArg<StringName>, callable: &Callable, ) -> Error

To set the default parameters, use Self::connect_ex and its builder methods. See the book for detailed usage instructions.

pub fn connect_ex<'a>( &'a mut self, signal: impl AsArg<StringName> + 'a, callable: &'a Callable, ) -> ExConnect<'a>

pub fn disconnect( &mut self, signal: impl AsArg<StringName>, callable: &Callable, )

pub fn is_connected( &self, signal: impl AsArg<StringName>, callable: &Callable, ) -> bool

pub fn set_block_signals(&mut self, enable: bool)

pub fn is_blocking_signals(&self) -> bool

pub fn notify_property_list_changed(&mut self)

pub fn set_message_translation(&mut self, enable: bool)

pub fn can_translate_messages(&self) -> bool

pub fn tr(&self, message: impl AsArg<StringName>) -> GString

To set the default parameters, use Self::tr_ex and its builder methods. See the book for detailed usage instructions.

pub fn tr_ex<'a>(&'a self, message: impl AsArg<StringName> + 'a) -> ExTr<'a>

pub fn tr_n( &self, message: impl AsArg<StringName>, plural_message: impl AsArg<StringName>, n: i32, ) -> GString

To set the default parameters, use Self::tr_n_ex and its builder methods. See the book for detailed usage instructions.

pub fn tr_n_ex<'a>( &'a self, message: impl AsArg<StringName> + 'a, plural_message: impl AsArg<StringName> + 'a, n: i32, ) -> ExTrN<'a>

pub fn is_queued_for_deletion(&self) -> bool

pub fn cancel_free(&mut self)

pub fn notify(&mut self, what: ObjectNotification)

⚠️ Sends a Godot notification to all classes inherited by the object.

Triggers calls to on_notification(), and depending on the notification, also to Godot’s lifecycle callbacks such as ready().

Starts from the highest ancestor (the Object class) and goes down the hierarchy. See also Godot docs for Object::notification().

Panics

If you call this method on a user-defined object while holding a GdRef or GdMut guard on the instance, you will encounter a panic. The reason is that the receiving virtual method on_notification() acquires a GdMut lock dynamically, which must be exclusive.

pub fn notify_reversed(&mut self, what: ObjectNotification)

⚠️ Like Self::notify(), but starts at the most-derived class and goes up the hierarchy.

See docs of that method, including the panics.

Trait Implementations

impl Bounds for UndoRedo

type Memory = MemManual

Defines the memory strategy of the static type.

type Declarer = DeclEngine

Whether this class is a core Godot class provided by the engine, or declared by the user as a Rust struct.

impl Debug for UndoRedo

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Deref for UndoRedo

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &<UndoRedo as Deref>::Target

Dereferences the value.

impl DerefMut for UndoRedo

fn deref_mut(&mut self) -> &mut <UndoRedo as Deref>::Target

Mutably dereferences the value.

impl GodotClass for UndoRedo

const INIT_LEVEL: InitLevel = crate::init::InitLevel::Scene

Initialization level, during which this class should be initialized with Godot.

type Base = Object

The immediate superclass of T. This is always a Godot engine class.

fn class_name() -> ClassName

The name of the class, under which it is registered in Godot.

fn inherits<U>() -> bool

where U: GodotClass,

Returns whether Self inherits from U.

impl GodotDefault for UndoRedo

impl Inherits<Object> for UndoRedo